Singapore's Changi Airport has been voted the World's Best Airport for the fourth year in a row at the 2016 World Airport Awards, according to a survey conducted by global aviation research firm Skytrax.

The 2016 World Airport Awards are based on a survey of 13.25 million customer nominations across 106 nationalities of air travelers and covered 550 airports worldwide.

Let's take a look at the top 10 best airports in the world.

No 10 Hamad International Airport

A passenger walks in a terminal upon his arrival at the new Hamad International Airport (HIA) in Doha, April 30, 2014.[Photo/Agencies]